If you’ve never tried it, this week is the perfect time to taste and explore genever, a malted, juniper-forward, neutral grain-based spirit known as “the granddaddy of gin,” or sometimes as Holland or Dutch gin. Avanti Food & Beverage, Guard and Grace, Mister Tuna, Williams & Graham, the Way Back, and the Terminal Bar in Union Station are all offering special genever-based cocktails December 12 through 16.